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Definition of heatwave
heatwave
/ˈhiːt.weɪv/
heat · wave
Plural:heatwaves
heatwave Lexical Profile
CEFR
B1
Grade
6
Tier
2
Usage
Top 5k
Syllables
2
heatwave Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A prolonged period of abnormally hot weather, often accompanied by high humidity.
Example
"The summer heatwave forced many residents to stay indoors during the afternoon."
Synonyms
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Wordmom. (2026). Definition of Heatwave. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/heatwave